1. Technology, prices, and the derived demand for energy;Berndt;Review of Economics and Statistics,1975
2. Engineering and econometric interpretation of the energy-capital complementarity;Berndt;American Economic Review,1979
3. Investigation of producer behavior in the Federal Republic of Germany, using the translog price function;Friede,1980
4. Substitutionsbeziehungen zwischen Arbeitskraft und Energie in der Westdeutschen Industrie 1963–1972;Linde;Kyklos,1979
5. Statistical methods of econometrics;Malinvaud,1970